Most cosmetic mirrors use curved crystal which provides an acceptable standard of quality. Thus, a standard mirror is produced using very fine 2mm-thick crystal. The magnification can be changed by modifying the concavity of the crystal with a press. The greater the radius, the greater the magnification. In our range of standard mirrors we offer two different magnifications: x3 and x5. For anything greater, such as x7, the radius curve would be too pronounced therefore making it unsuitable for this type of product. Optical mirrors (which have the initials OP after the reference number) are, on the other hand, manufactured by employing a completely different technology. It is the same technology which is used in the production of camera lenses, telescopes and, of course, the glasses that people wear. Starting with a piece of circular crystal, which has a uniform thickness, certain processes are applied in order to achieve a precise curve, which in turn provides the desired magnification in the reflected image. The curve is hidden from sight as it is behind the mirror’s totally flat exterior surface. In this way we can guarantee that the reflected image is completely free of distortion or defects of any kind.